High 7.6Published Feb 18, 2026

CVE-2026-0573Improper Handling of HTTP Redirects vulnerability was identified in GitHub Enterprise Server that allowed leaking of authorization token and enabled remote code execution

Updated under an hour ago (Oct 26, 2026, 3:30 PM ET)

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It affects GitHub Enterprise Server. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for GitHub Enterprise Server

Exploited in the last 30 days

An URL redirection vulnerability was identified in GitHub Enterprise Server that allowed attacker-controlled redirects to leak sensitive authorization tokens. The repository_pages API insecurely followed HTTP redirects when fetching artifact URLs, preserving the authorization header containing a privileged JWT. An authenticated user could redirect these requests to an attacker-controlled domain, exfiltrate the Actions.ManageOrgs JWT, and leverage it for potential remote code execution. Attackers would require access to the target GitHub Enterprise Server instance and the ability to exploit a legacy redirect to an attacker-controlled domain. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.19 and was fixed in versions 3.19.2, 3.18.4, 3.17.10, 3.16.13, 3.15.17, and 3.14.22. This vulnerability was reported via the GitHub Bug Bounty program.

CVSS: 7.6 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Weakness (CWE): CWE-601
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_P
NVD analysis: Analyzed
Record last updated: Feb 18, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

GitHub Enterprise Server github:enterprise_server (from the name)	from 3.14 through 3.14.21; fixed at 3.14.22; from 3.15 through 3.15.16; fixed at 3.15.17; from 3.16 through 3.16.12; fixed at 3.16.13; from 3.17 through 3.17.9; fixed at 3.17.10; from 3.18 through 3.18.3; fixed at 3.18.4; from 3.19 through 3.19.1; fixed at 3.19.2	CNA record
github enterprise_server github:enterprise_server	before 3.14.22; from 3.15.0 before 3.15.17; from 3.16.0 before 3.16.13; from 3.17.0 before 3.17.10; from 3.18.0 before 3.18.4; from 3.19.0 before 3.19.2	NVD

References

References

https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.22	release-notes, product
https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.17	release-notes, product
https://docs.github.com/en/enterprise-server@3.16/admin/release-notes#3.16.13	release-notes, product
https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.10	release-notes, product
https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.4	release-notes, product
https://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.2	release-notes, product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.